1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Shalnov [3]
3 years ago
10

Simplify (4i)(–5i)(6i) –120 –120i(incorrect) 120i 120

Mathematics
1 answer:
professor190 [17]3 years ago
4 0

Answer:

120i

Step-by-step explanation:

;i × i = -1....so hence

4i × (-5i) = -20 i^2...which is -20(-1) = 20....

then you multiply with 6i

20(6i) = 120i

You might be interested in
I need help with this​
Arturiano [62]

Answer:

With what? i dont see the picture

Step-by-step explanation:

5 0
3 years ago
Four mathematicians, three physicists, and an engineer are to be seated equally spaced around a circular table. How many differe
Vesna [10]

First, we can choose the seats for the four mathematicians.  Then we seat the physicits, then the engineer.  There are 4! ways to seat the mathematicians, then 3! ways to seat the physicists, then 1! ways to seat the engineer.  But then we must divide by 8, because we can rotate the table, so there are 8!*4!*3!/8 = 725760 ways to seat everyone.

3 0
3 years ago
table Given the graph of a linear function, identify the steps used to find the initial value. Check all that apply. Find the ra
Doss [256]

Answer:

  • The initial value corresponds to the y value when x = 0

Step-by-step explanation:

Since the graph is given, it is unnecessary to "finish the line." It is only necessary to read the value of y from the graph where x=0.

5 0
3 years ago
Read 2 more answers
Can someone please help me with these two questions ​
Anarel [89]

Answer:

  23.  0.4583 seconds

  24.  0.0107 seconds

Step-by-step explanation:

The problem statement tells you how to work it. You need to convert speed from miles per hour to feet (or inches) per second.

 90 mi/h = (90·5280 ft)/(3600 s) = 132 ft/s = (132·12 in)/s = 1584 in/s

__

23. The time it takes for the ball to travel 60.5 ft is ...

  time = distance/speed

  time = (60.5 ft)/(132 ft/s) = 0.4583 s

It takes 458.3 milliseconds to reach home plate.

__

24. time = distance/speed

  time = (17 in)/(1584 in/s) = 0.0107 s

The ball is in the strike zone for 10.7 milliseconds.

4 0
3 years ago
Stephanie bought 36.5 inches of lumber at Home Depot the lumber cost 2.10 per inch including the sales tax. Stephanie bought 36.
tamaranim1 [39]

Answer:76.65

Step-by-step explanation:

First, you write 36.5 times 2.10

Then, multiply them.

That equals 76.65

4 0
3 years ago
Other questions:
  • 24 is what percent of 60
    11·2 answers
  • What is a integer????
    7·2 answers
  • A Lake Tahoe Community College instructor is interested in the mean number of days Lake Tahoe Community College math students ar
    10·1 answer
  • Round this to the nearest thousand. 4,589,215
    5·2 answers
  • What is the answer x^2+28=0
    7·2 answers
  • What is the answer?!
    7·2 answers
  • Need help! due today
    6·1 answer
  • Find the measure of 63°
    7·2 answers
  • In a card game, Alex has 2 diamonds 3 spades 4 clubs, and 1 heart. Without being able to see the cards wes is going to pick one
    8·1 answer
  • Create a ratio table to match the following situation; write at least four different equivalent ratios in the table. For every t
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!